Question for HAM1101 / HAM1011 - MINI PIR SENSOR WITH ALARM

Hi all! I wish to purchase this item for my stores to inform the sales person that a client enter.
The function of the sensor should be to emit a chime sound when a person crosses in front of it.
On the instruction at page 2 I read that there is a delay of 10 sec in emitting Alarm sound (which to me sounds correct), but that the same delay applies also when functioning as a chime (which it sound strange and not correct to me)
So as by the instruction a person need to move 10 secs in front of the sensor before it chime. Could you please double check if this is the real way of functioning?
Thank you very much!
Luca

Please: Velleman Projects items only (see forum rules).
For all other items of the Velleman group, please use the online support form:
http://www.velleman.eu/support/contact/?product=350612